Abstract but easily to remember. For those who like those eye candy previews which are more difficult to print thank bw-logos (think of my submission "indian oil").
Hit "download" for a png which shows another more complex version and the original itself.
Jump to http://www.kde-look.org/content/show.php?content=10301 or click on the second screenshot to view the simple bw-version mentioned above. There have been some changes made I'll probably add to this bw-version later, if there is need to do so.